Jig for pivotally suspending articles



March 4, 1952 K. M. LARSEN 2,588,128

JIG FOR PIVOTALLY SUSPENDING ARTICLES Filed April 4, 1949 IN VEN TOR.

ATTORN EYS KARL M. LARSEN Patented Mar. 4, 1952 JIG FOR PIVOTALLYSUSPENDING ARTICLES Karl M. Larsen Minneapolis, Minn.

Application April 4, 1949, Serial No. 85,319

It is an object of my invention to provide a novel and improved jig forholding article's adapted to be securely attached to a supporting 2Claims. (Cl. 118-503) structure to hold an article therein while per- Imitting free rotation and optimum positioning thereof.

It is another object to provide a jig for holding articles adapted to beattached to an upright member for support thereby and provided with ahorizontally disposed pivot pin to permit free swinging and optimumpositioning of an article securely clamped therein.

More specifically, it is an object to providea jig adapted to besecurely attached to an upright member and having a bracket memberdisposed in outstanding relation to the upright member for carrying aclamping mechanism to securely hold an article therein, said clampingmechanism being provided with a horizontally disposed pivot pinremovably mounted in said outstanding bracket to permit substantiallyfree rotation and positioning of the article clamped therein;

It is still a further object to provide a jig for pivotally suspendingarticles specifically adapted to be removably mounted on a suitablesupport-'- ing structure to permit quick and easy removal of the pivotedjig andthereby facilitate handling of a freshly painted article.

These and other objects and advantages of my invention will more fullyappear from the following description made in connection with theaccompanying drawings wherein like refer ence characters refer tosimilar parts throughout the several views and in which:

Fig.1 is a side elevational view of my jig having portions thereofbroken away to show in section and mounted on a ladder which is shown insection;

Fig. 2 is a top plan view of my jig with an article held therein;

Fig. 3 is a front elevation view of my jig showing the rotation thereofby dotted lines;

Fig. 4 is a fragmentary front elevational view of a portion of theclamping mechanism as viewed from line 4-4 of Fig. 1; and a Fig. 5 is aperspective view of an alternative form of attachment clamp.

As illustrated in Figs. 1 through 4, I provide one form of my inventiondesignated as form A' which has an article clamping member such as theelongated clamping bar I0 with suitable clamping elements adjustablymounted thereon.

In the form shown the bar II] has a plurality of longitudinally spacedtransversely disposed notches IDa formed along the inner edge portion ofthe marginal end portions thereof, as best shown in Fig. 2. An articleengaging jaw member II is slidably mounted along the front edge portionof the bar ID in transversely disposed relation thereto and has asubstantially U- shaped connection member [2 fixed to the rear sidethereof with the closed end of U member I2 surrounding said bar I0 andadapted to selectively engage the notches Illa. When the arms of theU-shaped connection member are disposed at substantially right angles tothe longitudinal axis of the bar I0, the jaw member II is permitted toslide and be longitudinally adjusted on said member I0. When outwardlydirected pressure is exerted on jaw member II, the U-shaped connectionmember I2 will engage a selected notch Illa, and the arms thereof willbe inclined relative to the longitudinal axis of bar Ill, and

the jaw member II will engage the forward edge portion of bar III toform a rigid abutment clamping member.

A second clamping jaw member I3 has a connection member I4 similar toconnection member I2 associated therewith. The jaw member I3 is mountedon a threaded shaft I5 which is threadably inserted through acooperatively threaded element I6 which is fixed to the arms of U-shapedconnection member I4. A suitable gripping head I! is fixed to the outerend of threaded shaft I5 to permit the same to be turned to project thejaw member I3 toward or away from jaw member I I and adjust the spacedrelation therebetween. An outstanding shaft I8 is fixed to member II]and is journaled in a horizontally disposed bearing member such as thebushing l9.

This bushing is removably mounted on a suitable supporting bracket 29 asby a depending spindle 2| fixed to the lower portion of said bushing andremovably inserted into a sleeve 22 fixed in depending relation to thesupporting bracket Suitable anchoring means are provided at the innerend of attachment bracket 20 such as the fixed hook member 23 secured atthe inner end of bracket 20 and having a rigid hook 23a formed at theupper portion thereof. An elongated slot 23b is formed through the lowerportion thereof, as best shown in Fig. 4, and an adjustable hook 24 witha threaded shank and a wing nut 25 is mounted therein for slidingmovement longitudinally of said hook member 23. The two hooks 23a and 24cooperate to securely attach the outstanding supporting bracket to aconventional ladder which serves to support the entire jig structureduring the operation to be performed on the article held between thejaws H and I3.

Suitable retaining means are provided at the .inner end of theoutstanding shaft is such as the washer 26 and cotter key 21. The jigillustrated is particularly designed for holding storm sash and screensduring the painting thereof, and by providing the horizontal pivotalconnection on shaft 18, the article secured between the jaws H and 13may be swung so that the optimum position for painting may be maintainedat all times. It should be noted that in the forms of the inventionillustrated the top extremity of sleeve 22 is disposed slightly belowthe upper edge of supporting bracket 20 to permit the bushing l9 to bedisposed along the outer marginal end portion of said supporting bracketin side by side relation thereto to prevent oscillation of the jig on avertical axis and limit the swinging movement to oscillation on ahorizontal axis.

;A second form designated as form B of my invention is illustrated inFig. 5 and is similar in all respects to form A of the invention exceptthat the anchoring means for the supporting bracket is somewhat modifiedto permit the jig to be mounted on an upright member such as the two byfour 28. The supporting bracket designated by the numeral 29 in form Bof the invention has a pair of apertures formed therethrough, and a pairof clamping bolts 30 are inserted through said apertures in slidingrelation thereto and are threadably received in a pair of internallythreaded apertures formed in clamping plate ,3! which is adapted to besecurely drawn up against the two by four 28 by the action of the bolts38. The operation of both forms of my invention is similar after theattachment brackets 20 and 29 have been rigidly anchored to a suitablesupporting structure. The elongated bar I0 journaled in the bushing 19is removably mounted on either the attachment bracket 20 or attachmentbracket 29 by the spindle 2| inserted in the sleeve 22.

The article clamping mechanism ,is initially removed from the supportingbracket and secure- I ly clamped to a screen frame or storm sash andthereafter remounted on the supporting bracket for painting of thearticle. After completion of the painting operation, the sash or screenis removed by gripping the clamping member to facilitate carrying of thefreshly painted article to a suitable drying location.

It will be seen that I have provided an extremely simple yet highlyefiicient jig for pivotally mounting articles to facilitate paintingthereof and permit easy handling of the freshly painted article. Thespecific forms of the invention illustrated provide a jig adapted topermit swinging on only a substantially horizontal axis and hold thearticle against swinging on a vertical axis to more firmly support saidarticle and thereby facilitate applying the paint thereto.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of the parts withoutdeparting from the scope of my invention.

What I claim is:

1. ,A jig for pivotally suspending articles com! prising an outstandingsubstantially horizontal supporting bar adapted to be securely anchoredat its inner end to a suitable supporting structure, a vertical sleeveelement fixed to the outer portion of said bar against one side thereofand in depending relation thereto and having a generally smooth interiorsurface, the upper end of said sleeve being disposed a slight distancebelow the upper edge of said bar, a unitary substantially T-shapedmember constituting a horizontal tubular bushing having rigid therewitha depending pin circular in cross section and having a generally smoothsurface, said pin being freely slidable vertically into and out of saidsleeve through the upper end thereof and rotatable therein, said bushingnormally resting upon the upper end of said sleeve and when restingthereon being disposed in side-by-side adjacent relation to the uppermarginal portion of said bar above the sleeve to prevent rotationalmovement between said depending pin and said sleeve and thereby preventhorizontal swinging movement of the bushing, a pivot pin journaled insaid bushing for rotation on a substantially horizontal axis, a barrigidly fixed intermediate its length tothe front end of said pivot pinand being tiltable vertically by turning of the pivot pin in the bushing, and clamping mechanism adjustably mounted on said bar forreleasably clamping an article thereto, the freely slidable fit of saiddepending pin in said sleeve permitting bodily upward removal of thearticle-carrying bar and an article clamped thereto from the sleeve ofthe supporting bar.

2. A jig for removably supporting articles comprising a support having aforwardly extending horizontal arm, ,a socket mounted vertically againstone side of said arm and having an open upper end spaced downwardly fromthe upper surface of the same, a unitary T-shaped member constituting ahorizontal tubular bearing having a depending spindle rotatably andremovably mounted in said socket through the open upper end thereof,said bearing normally resting upon the upper end of said socket andextending longitudinally-of said arm in side-by-side engagement with theportion of the arm above the socket and thereby held against turning toa position in crossing relation to the arm until shifted upwardly to aposition above the arm, and an article holder disposed forwardly of saidarm and having a rearwardly extending shank removably fitted into saidbearing through the front end thereof and rotatable therein for allowing vertical tilting of the article holder transversely of the holderabout its shank as an axis.

KARL M. LARSEN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 131,195 Traut Sept. 10, 18721,042,192 Boilot Oct. 22, 1912 1,725,072 Gorrell Aug. 20, 1929 1,732,081Clement Oct. 15, 1929 1,823,204 Long Sept. v15, 1931

